GitLab

Adds a chrome Feature to disable closing idle sockets on memory
pressure. This only applies to Profile NetworkContexts.

Bug: 1150526
Test: new browser test
Change-Id: I0e4f18d8faa4f365bdd7dc404003e147ca47aa8c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2547723Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Pavol Marko <pmarko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#829161}